<template>
    <div class='register'>
        <el-form ref='registerRef' :model='registerForm' :rules='registerRules' class='register-form'>
            <h3 class='title'>若依后台管理系统</h3>
            <el-form-item prop='username'>
                <el-input
                    v-model='registerForm.username'
                    auto-complete='off'
                    placeholder='账号'
                    size='large'
                    type='text'
                >
                    <template #prefix
                    >
                        <svg-icon class='el-input__icon input-icon' icon-class='user'
                        />
                    </template>
                </el-input>
            </el-form-item>
            <el-form-item prop='password'>
                <el-input
                    v-model='registerForm.password'
                    auto-complete='off'
                    placeholder='密码'
                    size='large'
                    type='password'
                    @keyup.enter='handleRegister'
                >
                    <template #prefix
                    >
                        <svg-icon class='el-input__icon input-icon' icon-class='password'
                        />
                    </template>
                </el-input>
            </el-form-item>
            <el-form-item prop='confirmPassword'>
                <el-input
                    v-model='registerForm.confirmPassword'
                    auto-complete='off'
                    placeholder='确认密码'
                    size='large'
                    type='password'
                    @keyup.enter='handleRegister'
                >
                    <template #prefix
                    >
                        <svg-icon class='el-input__icon input-icon' icon-class='password'
                        />
                    </template>
                </el-input>
            </el-form-item>
            <el-form-item v-if='captchaEnabled' prop='code'>
                <el-input
                    v-model='registerForm.code'
                    auto-complete='off'
                    placeholder='验证码'
                    size='large'
                    style='width: 63%'
                    @keyup.enter='handleRegister'
                >
                    <template #prefix
                    >
                        <svg-icon class='el-input__icon input-icon' icon-class='validCode'
                        />
                    </template>
                </el-input>
                <div class='register-code'>
                    <img :src='codeUrl' class='register-code-img' @click='getCode' />
                </div>
            </el-form-item>
            <el-form-item style='width: 100%'>
                <el-button
                    :loading='loading'
                    size='large'
                    style='width: 100%'
                    type='primary'
                    @click.prevent='handleRegister'
                >
                    <span v-if='!loading'>注 册</span>
                    <span v-else>注 册 中...</span>
                </el-button>
                <div style='float: right'>
                    <router-link :to="'/login'" class='link-type'>使用已有账户登录</router-link>
                </div>
            </el-form-item>
        </el-form>
        <!--  底部  -->
        <div class='el-register-footer'>
            <span>Copyright © 2018-2023 ruoyi.vip All Rights Reserved.</span>
        </div>
    </div>
</template>

<script lang='ts' setup>
import { ElMessageBox, FormInstance } from 'element-plus';
import { getCodeImg, register } from '@/api/login';
import { useRouter } from 'vue-router';
import { ref } from 'vue';

const router = useRouter();

const registerForm = ref({
    username: '',
    password: '',
    confirmPassword: '',
    code: '',
    uuid: ''
});

const equalToPassword = (rule: any, value: any, callback: (...args: any[]) => void) => {
    if (registerForm.value.password !== value) {
        callback(new Error('两次输入的密码不一致'));
    } else {
        callback();
    }
};

const registerRules = {
    username: [
        { required: true, trigger: 'blur', message: '请输入您的账号' },
        { min: 2, max: 20, message: '用户账号长度必须介于 2 和 20 之间', trigger: 'blur' }
    ],
    password: [
        { required: true, trigger: 'blur', message: '请输入您的密码' },
        { min: 5, max: 20, message: '用户密码长度必须介于 5 和 20 之间', trigger: 'blur' }
    ],
    confirmPassword: [
        { required: true, trigger: 'blur', message: '请再次输入您的密码' },
        { required: true, validator: equalToPassword, trigger: 'blur' }
    ],
    code: [{ required: true, trigger: 'change', message: '请输入验证码' }]
};

const codeUrl = ref('');
const loading = ref(false);
const captchaEnabled = ref(true);
const registerRef = ref<FormInstance>();

function handleRegister() {
    registerRef.value?.validate(valid => {
        if (valid) {
            loading.value = true;
            register(registerForm.value)
                .then(res => {
                    const username = registerForm.value.username;
                    ElMessageBox.alert(
                        '<font color=\'red\'>恭喜你，您的账号 ' + username + ' 注册成功！</font>',
                        '系统提示',
                        {
                            dangerouslyUseHTMLString: true,
                            type: 'success'
                        }
                    )
                        .then(() => {
                            router.push('/login');
                        })
                        .catch((e: any) => {
                            loading.value = true;
                            console.log(e);
                        });
                })
                .catch(() => {
                    loading.value = false;
                    if (captchaEnabled.value) {
                        getCode();
                    }
                });
        }
    });
}

function getCode() {
    getCodeImg().then((res: any) => {
        captchaEnabled.value = res.captchaEnabled === undefined ? true : res.captchaEnabled;
        if (captchaEnabled.value) {
            codeUrl.value = 'data:image/gif;base64,' + res.img;
            registerForm.value.uuid = res.uuid;
        }
    });
}

getCode();
</script>

<style lang='scss' scoped>
.register {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100%;
    background-image: url('../assets/images/login-background.jpg');
    background-size: cover;
}

.title {
    margin: 0px auto 30px auto;
    text-align: center;
    color: #707070;
}

.register-form {
    border-radius: 6px;
    background: #ffffff;
    width: 400px;
    padding: 25px 25px 5px 25px;

    .el-input {
        height: 40px;

        input {
            height: 40px;
        }
    }

    .input-icon {
        height: 39px;
        width: 14px;
        margin-left: 0px;
    }
}

.register-tip {
    font-size: 13px;
    text-align: center;
    color: #bfbfbf;
}

.register-code {
    width: 33%;
    height: 40px;
    float: right;

    img {
        cursor: pointer;
        vertical-align: middle;
    }
}

.el-register-footer {
    height: 40px;
    line-height: 40px;
    position: fixed;
    bottom: 0;
    width: 100%;
    text-align: center;
    color: #fff;
    font-family: Arial;
    font-size: 12px;
    letter-spacing: 1px;
}

.register-code-img {
    height: 40px;
    padding-left: 12px;
}
</style>
